C:\>asm43 --help
Relay Computer Assembler: Ver. Beta 0.4.3

Valid assembler codes:

ADD     : 22  00100010
AND     : 26  00100110
BRA     : 60  01100000
BRN     : 48  01001000
BRNN    : 54  01010100
BRNO    : 5c  01011100
BRNP    : 50  01010000
BRNZ    : 4c  01001100
BRO     : 58  01011000
BRP     : 44  01000100
BRZ     : 40  01000000
DEF     :
EQU     :
HALT    : 08  00001000
INCB,A  : 2c  00101100
INCB,C  : 2e  00101110
LDAA    : a0  10100000
LDAB    : a1  10100001
LDAC    : a2  10100010
LDDA    : a8  10101000
LDDB    : a9  10101001
LDDC    : aa  10101010
LDIA    : 98  10011000
LDIB    : 99  10011001
LDIC    : 9a  10011010
MOVA,B  : c1  11000001
MOVA,C  : c2  11000010
MOVA,MH : c3  11000011
MOVA,ML : c4  11000100
MOVAD+,PC: ec  11101100
MOVB,A  : c8  11001000
MOVB,C  : ca  11001010
MOVB,MH : cb  11001011
MOVB,ML : cc  11001100
MOVC,A  : d0  11010000
MOVC,B  : d1  11010001
MOVC,MH : d3  11010011
MOVC,ML : d4  11010100
MOVM,PC : de  11011110
MOVPC,AD+: f5  11110101
MOVZ,A  : f8  11111000
MOVZ,B  : f9  11111001
MOVZ,C  : fa  11111010
MOVZ,MH : fb  11111011
MOVZ,ML : fc  11111100
NOP     : 00  00000000
NOTA,B  : 29  00101001
NOTA,C  : 2a  00101010
ORG     :
RESET   : 04  00000100
ROLB,A  : 34  00110100
ROLB,C  : 36  00110110
RORA,B  : 31  00110001
RORA,C  : 32  00110010
STAA    : 84  10000100
STAB    : 8c  10001100
STAC    : 94  10010100
STAZ    : bc  10111100
STDA    : 85  10000101
STDB    : 8d  10001101
STDC    : 95  10010101
WAIT    : 0c  00001100
\       :


 Example assembly


>>>>> Starting pass1...
Constant->    START 05H (5)
Constant->     LENG 0AH (10)
Constant->      END 0FH (15)
Symbol->      STACK 4000H (16384)
Symbol->     stkPtr 400AH (16394)
Label->         L1: 0040H
Label->       RET1: 0062H
<<<<< end of pass1

\ This is a comment
\ Define a constant
                 EQU    START     05H
                 EQU    LENG      10
                 EQU    END       START+LENG

\ Define some variables in RAM
4000:            ORG    4000H          \Ram at 4000H
                 DEF    STACK     *10  \Holds 5 addresses
                 DEF    stkPtr    *2   \Pointer into stack

\ Beginning of code
\
  \ Space prefixed string
  \ Tab prefixed string
  \ Space after \ in string
0100:            org    0100H
0100:   00       nop
0101:   00       NOP
0102:   BC 40 0A STAZ   stkPtr
0105:   BC 40 0B STAZ   stkPtr+1
0108:   F8       MOVZ,A
0109:   85       STDA
010A:   A8       LDDA
0032:            org    50            \using decimal org
0032:   99 FF    LDIB   FFH
0034:   99 08    LDIB   START+3
0036:   98 05    LDIA   START
0038:   98 40    LDIA   STACK:H
003A:   98 00    LDIA   STACK:L
003C:   98 03    LDIA   STACK+3:L
003E:   98 40    LDIA   STACK+3:H
    L1:
0040:   22       ADD
0041:   D0       MOVC,A
0042:   4C 00 40 BRNZ   L1:    \ Test trailing comment
0045:   00       nop
0046:   00       nop
0047:   A0 00 02 LDAA   0002H  \ Address in Hex
004A:   A0 00 40 LDAA   L1:    \ Address as a label
004D:   A1 40 0A LDAB   stkPtr \ Address as a symbol
0050:   2E       INCB,C
0051:   94 40 0A STAC   stkPtr
0054:   94 40 0D STAC   stkPtr+START-2
0057:   A0 40 0B LDAA   stkPtr+1
005A:   36       ROLB,C
005B:   98 00    LDIA   RET1:H
005D:   C3       MOVA,MH
005E:   98 62    LDIA   RET1:L
0060:   C4       MOVA,ML
0061:   DE       MOVM,PC
    RET1:
0062:   08       halt
\ End of program



Labels
======
0040:       L1:
0062:     RET1:

Symbols
=======
    STACK: 4000
   stkPtr: 400A

Constants
=========
    START: 05
     LENG: 0A
      END: 0F

Hex output
==========
4000:
0100:  00  00  BC  40  0A  BC  40  0B
0108:  F8  85  A8
0032:  99  FF  99  08  98  05  98  40
003A:  98  00  98  03  98  40  22  D0
0042:  4C  00  40  00  00  A0  00  02
004A:  A0  00  40  A1  40  0A  2E  94
0052:  40  0A  94  40  0D  A0  40  0B
005A:  36  98  00  C3  98  62  C4  DE
0062:  08

0:Errors


C:\>